Hi Lori,
the code is difficult to understand for people,so I will give my requirement.
-->create a Parent part and immediately add a existing part as child part.
what I have done for above problem
I have created the Parent part and after creation I have retrieved it, and added the existing part as child part..
but i dont want retrieving the Parent part, I want to add dirtectly the child part with out rretrieving the parent part after creation.